6389934 has 8 divisors (see below), whose sum is σ = 12779880. Its totient is φ = 2129976.

The previous prime is 6389917. The next prime is 6389941. The reversal of 6389934 is 4399836.

It is a sphenic number, since it is the product of 3 distinct primes.

6389934 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532489 + ... + 532500.

It is an arithmetic number, because the mean of its divisors is an integer number (1597485).

Almost surely, 2^6389934 is an apocalyptic number.

6389934 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6389934 is a wasteful number, since it uses less digits than its factorization.

6389934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064994.

The product of its digits is 139968, while the sum is 42.

The square root of 6389934 is about 2527.8318773210. The cubic root of 6389934 is about 185.5661642826.

The spelling of 6389934 in words is "six million, three hundred eighty-nine thousand, nine hundred thirty-four".